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Seeding and Fertilizing to Improve High-elevation Rangelands

William A. Laycock

出版	U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1982
URL	http://books.google.com.hk/books?id=vh6PfXwwk-sC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN